Marina and Airi's single mother has recently gotten married. Their new step-dad seems like he'll make a loving father. Like a really, really loving father.
A rich girl and her maid are in a tough spot. Two armed robbers have broken into their house and are now holding them hostage. They don't want money though... they just want some love.
It seems that everyone is fighting over Seiryu-kun's genes! They've even made a competition out of it! This is a crazy rom-com adventure, where a high school student and her friend are trying to get impregnated.